When swmbo and I go out she usually drives because she doesn’t like my driving,even though I keep closer to speed limits than she does (uasually 10/20k,s over limit) and I used to drive school buses with 40 odd kids on board so had to be aware of concentration levels and distractions.anyway wifey has a habit of getting distracted with heater controls etc, and I can tell when she is off thinking about something else while driving as concentration levels reduce.recently had to grab steering wheel to pull car back to left as she tends to wander to the right when fiddling with heater etc,got a rebuff from her to which I replied but you didn’t see the look on the face of the oncoming driver whose car you were heading for.luckily we were only in a 60kph zone but still got silent treatment for a while…ggrrrrI used to road race bikes and you get an idea of the possible level of concentration possible .
Using this as a rough reference point i sometimes estimate my level of concentration.
I don't listen to the stereo or mobile while driving like a lot of people because it reduces your level of concentration.
Even so sometimes when you are thinking about things in the car i am aware of the fall in concentration levels.
A lot of people don't have very good reflexes and response to changing situations , so i wonder if it is just good luck there are not more accidents.
Like some dumb people who drive in the middle of the dirt road on crests and corners.
Their excuse that it is the "Best part of the road".
Not going to end well, when two 2 ton vehicles collide.